Wallingford GMC · Wallingford, CT

2026 GMC Sierra 1500 SLT

10 miles · truck

1 / 24 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 1500

TrimSLT

VIN1GTUUDEL2TZ512259

Stock number512259G

Mileage10 miles

BodyPickup

Engine6.2L V8

Cylinders8

Displacement6.2L

TransmissionAutomatic

Drivetrain4WD

FuelGasoline

MPG15 city / 19 hwy

ExteriorOnyx Black

Towing8900

Vehicle description

Onyx Black 2026 GMC Sierra 1500 SLT 4WD 10-Speed Automatic EcoTec3 6.2L V8 This vehicle features High Capacity Suspension Package, Preferred Equipment Group 4SA (10-Way Power Driver Seat Adjuster with Lumbar, 10-Way Power Passenger Seat Adjuster with Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Interior Power Outlet, 170 Amp Alternator, 2 Charge/Data USB Ports, 2 Type-C Charge-Only Rear USB Ports, 6-Speaker Audio System Feature, Auto-Locking Rear Differential, Auxiliary External Transmission Oil Cooler, Chrome Header and Chrome Grille Insert Bars, Color-Keyed Carpeting Floor Covering, Deep-Tinted Glass, Driver Memory, Electric Rear-Window Defogger, Front 40/20/40 Split-Bench Seat, Front Frame-Mounted Black Recovery Hooks, Front Rain-Sensing Wipers, HD Rear Vision Camera, Heated Driver and Front Outboard Passenger Seating, Integrated Trailer Brake Controller, Keyless Open and Start, LED Cargo Area Lighting, Manual Tilt-Wheel and Telescoping Steering Column, OnStar Services Capable, Perimeter Lighting, Power Door Locks, Power Front Passenger Windows with Express Up/Down, Power Front Windows with Driver Express Up/Down, Power Rear Windows with Express Down, Push Button Start, Rear Wheelhouse Liners, Remote Vehicle Starter System, SiriusXM with 360L Trial Subscription, Steering Wheel Audio Controls, Theft Deterrent System (unauthorized Entry), Wheels: 18 x 8.5 6-Spoke Machined Aluminum, and Wi-Fi Hotspot Capable), ProGrade Trailering System (Hitch View and in-Vehicle Trailering System App), SLT Convenience Package (2 Charge/Data USB Ports Inside Center Console, Electronic Precision Shift, Floor-Mounted Center Console, Front Bucket Seats, Power Rake and Telescoping Steering Column, Premium Bose 7-Speaker Sound System, Ventilated Driver and Front Passenger Seats, and Wireless Charging), SLT Preferred Package (Adaptive Cruise Control, Heated 2nd Row Outboard Seats, Power Sliding Rear Window with Rear Defogger, and Universal Home Remote), SLT Premium Package (20 Polished Aluminum Wheels and Chrome Wheel to Wheel Assist Steps), Standard Suspension Package, Trailering Package (Hitch Guidance), X31 Off-Road and Protection Package (All-Weather Floor Liner and Spray-on Pickup Bedliner with GMC Logo), X31 Off-Road Package (Dual Exhaust System, Heavy-Duty Air Filter, Hill Descent Control, Off-Road Suspension, and X31 Hard Badge), 3.23 Rear Axle Ratio, 4-Wheel Disc Brakes, 6 Speakers, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Brake assist, Buckle to Drive, Bumpers: chrome, Compass, Delay-off headlights, Driver door bin, Driver vanity mirror, Dual Active Exhaust, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Emergency communication system: OnStar, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Center Armrest w/Storage, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front Pedestrian Braking, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heated door mirrors, Heated front seats, Heated steering wheel, Illuminated entry, IntelliBeam Automatic High Beam on/Off, Lane Keep Assist with Lane Departure Warning, Low tire pressure warning, Memory seat, Navigation System, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Outboard Seat Trim, Power door mirrors, Power driver seat, Power passenger seat, Power steering, Power windows, Radio data system, Radio: Premium GMC Infotainment Audio System, Rain sensing wipers, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear window defroster, Remote keyless entry, Secu

Features & options (250)

Adaptive Cruise Control
Bluetooth®
Heated Steering Wheel
Remote Start
4WD/AWD
Android Auto
Apple CarPlay
Keyless Entry
Keyless Ignition System
Leather Seats
Wi-Fi Hotspot
Auto Dimming Mirror
Emergency Brake Assist
Lane Departure Warning
Lane Keep Assist
Wireless Phone Charging
Forward Collision Warning
Navigation System
Rear View Camera
Tow Hitch/Tow Package
Automatic Climate Control
Entertainment System
Premium Sound System
SiriusXM Trial Subscription
Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones
Can use Apple CarPlay and Android Auto wirelessly
Wi-Fi Hotspot capable
May require additional optional equipment
Steering-wheel mounted controls
13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth® streaming audio for music and select phones
Wireless Apple CarPlay capability for compatible phones
Wireless Android Auto capability for compatible phones
Customize and manage entertainment and vehicle feature setting
Voice-activated technology for phone
SiriusXM with 360L Trial Subscription
Place and receive hands-free phone calls
Chrome front bumper
Deep-tinted glass
Provides added protection from sun and glare
Grille (Chrome header and chrome grille insert bars with gloss black accents.)
Rainsense automatic wipers
17" full-size spare steel wheel with Black finish
LED projectors with Fade-on/ Fade-off animation, LED turn signals and Daytime Running Lamps
Cargo bed LED lighting
Provides light to find cargo in the bed
Rear pillar lamps
Perimeter Lighting
Chrome rear bumper
With integrated CornerSteps
Spare tire carrier lock
Helps keep spare tire secure
Utilizes the same key as the door and ignition
IntelliBeam
Heated, power, driver-side auto-dimming, power-folding outside mirrors
Puddle lamps
Memory setting
Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
Cab-mounted cargo area lamps
With switch in switch bank left of the steering wheel
Illuminates the cargo bed area
Chrome mirror caps
GMC MultiPro Tailgate
Full chrome surround window moldings
Rear wheelhouse liners
Tailgate with EZ Lift assist, power lock & release
Hitch area lighting
Tailgate and bed rail protection caps
CornerStep rear bumper
Located at each end of the rear bumper
Textured step pads to help provide secure footing
LED fog lamps
Help minimize glare in adverse driving conditions
Chrome door handles
17" 255/80R17SL all-season, blackwall spare tire
6" chrome rectangular full length assist steps
Textured step pads help provide secure footing
Extends from wheel well to wheel well
Power sliding rear window with rear defogger
20" Polished aluminum wheels with technical gray painted accents
Front license plate bracket
20" 275/60R20SL all-terrain, blackwall tires
Wheel locks
Helps safeguard wheels on the vehicle
4 locks
1 key
Onyx Black
Spray-on bedliner
Includes logo on all trims except PRO
Carpeted floor covering
Color-keyed to match the interior
13.4" diagonal multicolor reconfigurable Infotainment screen
Rear air vents
Provides cabin comfort for rear occupants
120-volt box-mounted power outlet
3-prong auxiliary household-style outlet
Located in the pickup bed
Steering column lock, electrical
USB ports
(2) Data/charge ports located on instrument panel
Rear carpeted floor mats
Helps protect your interior from road debris and the elements
Denali model has unique premium carpet
Denali Ultimate model has premium floor mats
(2) Charge ports located on rear of console
Driver memory
Power windows
Front passenger with express-up/down
120-volt power outlet
Located on the instrument panel
Theft-deterrent unauthorized entry system
Helps deter unauthorized entry, helping to protect your vehicle
Keyless Open and Start
Power door locks
Programmable
10-way power driver seat with power lumbar
Moves the seat forward and back, and up and down
Tilt the seat cushion and seatbacks
12.3" diagonal color Driver Information Center
Assist handles
Front A-pillar mounted for Driver and Passenger
Rear B-pillar mounted
Driver with express-up/down
Dual-zone automatic climate control
Allows individual climate settings for both driver and front passenger
Up-level rear seat with storage package
60/40 Full-length folding bench seat
Seatback storage on left and right side
Center fold out armrest with 2 cupholders
Underseat storage (full cab width)
Compass
Located in instrument cluster
10-way power front passenger seat
Forward and back
Up and down
Tilt seat cushion back and upright
Recline seatback up and down
Includes 2-way power lumbar
Inside rearview auto-dimming mirror
Front carpeted floor mats
Denali Ultimate model has premium floor mats with corner applique
Power windows with rear express-down
Wrapped steering wheel
Rear window defogger
Outside temperature display
Located in infotainment display
Heated driver and front outboard passenger seats
Individually controlled
Seat trim, Perforated leather-appointed front outboard
Front center console
All-weather floor liners
Include Brand logo
Provides coverage for first and second-row seating
Replaces factory floor mats
You can always override the feature and take control
Front bucket seats
Includes center console
Universal Home Remote
3-channel programmable
Power tilt and telescoping steering column
Use the driver memory to save and recall memory settings
Provides extra comfort when entering or exiting the vehicle
Jet Black, Perforated leather-appointed front outboard seat trim
Ventilated driver and front passenger seats
Cooling feature includes both seatbacks and cushions
In-Vehicle Trailering App
Checklist
Trailer light sequencing
Trailer maintenance reminders
Trailer security alerts
Trailer mileage
Tow/haul reminder
Trailer electrical diagnostics
Heated rear outboard seats
Wireless Charging
Uses induction technology for portable electronic devices
Convenient charging location at the front of the center console
Device may require optional case for phones that are compatible
Cargo tie-downs (12)
7,100 lbs. GVWR
Pickup bed
Roll-formed high-strength steel
4-wheel antilock disc brakes
3.23 rear axle ratio
Heavy-duty 730 cold-cranking amps battery
80 Amp-hr
Maintenance-free with rundown protection and retained accessory power
Brake pad wear indicator
Push Button Start
Automatic locking rear differential
Electric Power Steering
Electric, rack-mounted with variable assist
Steering assist is greater during low-speed maneuvers, such as parking
170-amp alternator
Aluminized stainless-steel muffler and tailpipe
Capless fuel fill
Fully boxed frame
Hydroformed front section
High-strength steel
Black vertical recovery hooks
Two front frame-mounted
Four wheel drive
Integrated trailer brake controller
Integrated with the antilock brake system (ABS)
Suspension, Off-Road
Heavy-Duty Air Filter
2-speed Autotrac Transfer Case
2WD HI mode
Vehicle operates in 2-wheel drive
Suitable for routine driving on all road surfaces
4WD Auto mode
4WD HI mode
4WD LO mode
Neutral
Hill Descent Control
Uses antilock braking to help provide a smooth, controlled descent
Activates by pushing a button below the instrument panel
Active Exhaust, Dual, sport-mode enabled
Skid plates
GMC Pro Safety
Forward Collision Alert
Following Distance Indicator
Front Pedestrian Braking
Lane Keep Assist with Lane Departure Warning
Automatic Emergency Braking
Buckle to Drive
Safety Alert Seat on AT4, AT4X, Denali and Denali Ultimate
Trailering Package
Trailer hitch
Trailering hitch platform
Includes a 2" receiver hitch, 4-pin and 7-pin connectors
Hitch Guidance
SLT Preferred Equipment Group includes standard equipment
SLT Convenience Package
Bucket seats
Center console
Heated and ventilated front seats
USB ports in center console
Bose Premium Sound System with Richbass woofer
Power Rake/ Telescoping steering column
SLT Premium Package
20" Polished aluminum wheels
6" Chrome assist steps
X31 Off-Road and Protection Package
X31 Off-Road Package
X31 badge (replaces "4X4" badge on bed)
ProGrade Trailering System
Hitch Guidance with Hitch View
SLT Preferred Package
Power rear sliding window

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of Wallingford, Connecticut

Asking price$62,354Dealer asking price · 10 mi

Market value$60,457Market value · based on 12 comparable cars

vs. market Fair price+3.1%Fair price · based on 12 comparable cars

Where this price sits

Among the highest-priced · 17% of 12 similar listings ask more than this car.

Market value $60,457

This car$62,354

$55,200lowest$69,038highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$1,897 above the market value of $60,457

Price range

$55,200$69,038

11th lowest price of 13 similar listings within 50 milesTick marks the market value · range of 12 similar listings

AutosXchange Insights

Compared with 12 new 2026 GMC Sierra 1500 SLT listings within 50 mi.
Priced $1,897 above the market value of 12 comparable cars — compare options, condition and history.
11th lowest price of 13 similar listings within 50 miles.
About 10 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 512259G — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 7, 2026. No price change at this dealership since Nov 7 ($62,354).0 price changes at this dealership: $62,354 → $62,354.

AutosXchange Intel Hub: Price changes for this model in Connecticut · This model in the Intel Hub · Market movers in Connecticut

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 11); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2026 Sierra 1500 SLT · new · within 50 miles of Wallingford, Connecticut. All 12 comparable cars for sale, nearest first.

2026 GMC Sierra 1500 SLT for sale at Wallingford GMC in Wallingford, CT

Good deal

24 photos